# A150159 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 20
4 75
5 281
6 1124
7 4486
8 18639
9 77206
10 328890
11 1395906
12 6050956
13 26136456
14 114778979
15 502344204
16 2228393792
17 9853587549
18 44063941695
19 196458703812
20 884350126214
21 3969706072110
22 17968092289269
23 81115171940812
24 368869814023320
25 1673281530399285
26 7639806858020959
27 34800256117181418